نتایج جستجو برای: titanium substrates
تعداد نتایج: 114523 فیلتر نتایج به سال:
Bioactive calcium phosphate coating prepared on H2O2-treated titanium substrate by electrodeposition
This study examined the characteristics of calcium phosphate coatings formed on untreated and H2O2-treated titanium substrates by electrodeposition in a modified simulated body fluid (SBF). A porous coating comprising of mainly hydroxyapatite (HA) was formed on the H2O2-treated titanium substrate by electrodeposition. This coating was transformed into carbonate and calcium-deficient HA layers w...
The titanium silicide thin films had been formed on Si substrate by reacting of TiX4 (X=Cl, Br) with Si under different experimental conditions. The Si consumption and the titanium silicide obtains were calculated by the film thickness. In some reactions, titanium silicide thin film was found not only on the Si substrates but also on the SiO2 wall at the outlet of the reaction chamber. The quan...
Titanium is widely used in biomedical applications. Its mechanical properties and biocompatibility, conferred by a layer of oxide present on its surface, make titanium the material of choice for various implants (artificial hip and knee joints, dental prosthetics, vascular stents, heart valves). Furthermore, the high refractive index of titanium oxide is advantageous in biosensor applications b...
OBJECTIVES Anodized treated titanium surfaces, have been proposed as potential surfaces with better cell attachment capacities. We have investigated the adhesion and proliferation properties of H9C2 cardiac myoblasts on anodized treated titanium surface. MATERIALS AND METHODS Surface topography and anodized tubules were examined by high-resolution scanning electron microscopy (SEM). Control a...
Article history: Received 17 March 2016 Received in revised form 11 July 2016 Accepted 13 July 2016 Available online 15 July 2016 Fabrication methods for titanium substrates exhibiting continuous micro and nano scale arrays, with increasing feature heights over the length of the array are reported. The resultant feature heights spanned0–2 μm.Patterned gradient arrays of circular featureswith di...
In this study, titanium thin films were deposited on alumina substrates by radio frequency (RF) magnetron sputtering. The mechanical properties of the Ti coatings were evaluated in terms of adhesion strength at various RF powers, temperatures, and substrate bias voltages. The coating conditions of 400W of RF power, 250°C, and a 75V substrate bias voltage produced the strongest coating adhesion,...
OBJECTIVES The formation of biofilm around implants, which is induced by immediate bacterial colonization after installation, is the primary cause of post-operation infection. Initial surface modification is usually required to incorporate antibacterial agents on titanium (Ti) surfaces to inhibit biofilm formation. However, simple and effective priming methods are still lacking for the developm...
Titanium has limitations in its clinical performance in dental and orthopaedic applications. This study describes a coating process using pulsed laser deposition (PLD) technology to produce surfaces of titanium carbide (TiC) on titanium substrates and evaluates the biological response both in vitro and in vivo. X-ray photoelectron spectroscopy (XPS) analysis revealed the presence of 18.6-21.5% ...
Germanium nanowires have been grown successfully on titanium. The wires are single crystal, with some low angle stacking faults and other defects. Growth of nanowires on metal substrates offers reduced cost over single crystal substrates, while still offering an electrical contact to the wire core for core-shell junction structures. Summary of Research: Figure 1: 80 nm germanium nanowires on a ...
Significant progress made in materials science, mainly in the technology of surface, allows for intentional modifications of metallic surfaces. Thin layers of modified surfaces separate metallic substrates from environment and prevent them from corrosion. However, a real opportunity to control the interaction of surface with surrounding tissues and body fluids, with respect to the anticipated a...
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